Yesterday was National Underwear Day... yes it's a real day! National Underwear Day was founded on August 5, 2003 by Freshpair in an effort to publicly shine light on "unmentionables".

In honor of National Underwear Day, I decided to share with you some of my favorite Underwear for little ones. Underwear is often an afterthought, they are hidden after all, but kids love fun Underwear to help better express their personalities.

I've had kids' Underwear on my radar a lot lately, it is our goal to have Mario potty trained by the time he starts pre-school in the fall. He is very excited about his "big kid" Underwear, now to get him to wear them without "accidents". Wish us luck!

7 PACK UNDERWEAR Rosy Dot Pack is comfortable and pretty in pure cotton rib, and comes in a coordinating bag.

Bluebelle Boys Underwear Set are 95% bamboo cotton making them super soft! They have a classic square cut with wide elastic waist and are super comfy!

Petit Bateau Gray Star Print 2 Pack Of Trunks is made in cotton and has a slim-fit, this 2 pack of trunks from Petit Bateau will make the perfect addition to his Underwear drawer. They have a star and plain design, flat seams for comfort and are finished off with branding at the waistband.

Petit Bateau Boxers are made in cotton, this 2 pack of trunks from Petit Bateau has 1 star print and 1 striped.

Hatley 2 Pack Boxers... who needs pants when your boxers are this cute?! They are 100% cotton with a functional fly and wide elastic band.